UBUNTU-CVE-2018-14734

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    UBUNTU-CVE-2018-14734

    Published: 29 Jul 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-14734
    Aliases:
    USN-3797-1
    USN-3797-2
    USN-3847-1

    Summary:

    Details: drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free).

    References: https://ubuntu.com/security/CVE-2018-14734, https://git.kernel.org/linus/cb2595c1393b4a5211534e6f0a0fbad369e21ad8, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb2595c1393b4a5211534e6f0a0fbad369e21ad8, https://github.com/torvalds/linux/commit/cb2595c1393b4a5211534e6f0a0fbad369e21ad8, https://ubuntu.com/security/notices/USN-3797-1, https://ubuntu.com/security/notices/USN-3797-2, https://ubuntu.com/security/notices/USN-3847-1, https://ubuntu.com/security/notices/USN-3847-2, https://ubuntu.com/security/notices/USN-3847-3, https://ubuntu.com/security/notices/USN-3849-1, https://ubuntu.com/security/notices/USN-3849-2, https://www.cve.org/CVERecord?id=CVE-2018-14734

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-164.214

    Affected versions

    3.11.0-12.19

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High